Drivers who push in

When 2 lanes merge into one, it can become tense – especially if the drivers in the left lane have been waiting a long time and drivers then merge in from the right lane. Its not a good idea to take matters into your own hands as you are not responsible for traffic control, and it can also be dangerous, stressful and unsettling to get involved in road rage.

In this video, what would you have done? Was the driver within their rights to try and prevent others pushing in?